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M&M PLUMBING EXPERT LTD: plumbing, heating and air-conditioning company in London
M&M PLUMBING EXPERT LTD is an active limited company (no. 11789869), incorporated in 2019, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in N21 (London), and 1,633 similar companies have a registered office within 10 km. If you need an MCS-certified air-to-air installer, MCS lists 0 installers certified for air-to-air heat pumps yet (checked 25 Sep 2026), so no company here can offer the £2,500 grant route today.
Active
Within 10 km
1,633 similar companies within 10 km. London
What homes around N21 need
In N21 last summer (2026) there were ≈11 nights that stayed above 18 °C — 7 times the 1991–2020 average of 1.6 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
13% of sampled postcodes in N21 sit in a conservation area (on-record, 557 live postcodes).
In England an air-source heat pump on a house can be permitted development under Class G when the conditions hold, including the MCS 020a noise limit of 37.0 dB(A) (§3.2 Step 8).
Hot nights: ERA5-ARCO, June–August, minimum at or above 18 °C, 2026 against the 1991–2020 mean, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points, snapshot 25 Sep 2026. Noise limit from the decision contract, checked 25 Sep 2026.
Nearest similar companies
| Company | Number | District | Distance |
|---|---|---|---|
| ALPHATEC BOILER REPAIRS LTD | 05598981 | N21 | ≈0.2 km |
| YOUNGS PLUMBING LTD | 06773248 | N21 | ≈0.2 km |
| COMFORT COOLING SYSTEMS LTD | 10265406 | N21 | ≈0.3 km |
| PURE HEATING WATER LTD | 13537494 | N21 | ≈0.3 km |
| KOTWICA BUILDING SERVICES LTD | 10433297 | N21 | ≈0.3 km |
| B.T.P. TRADING LTD | 08180556 | N21 | ≈0.4 km |
| ATP MAINTENANCE (LONDON) LIMITED | 08745510 | N21 | ≈0.4 km |
| THERMACOOL FACILITIES SERVICES LTD | 09108639 | N21 | ≈0.4 km |
| PM GREENWAY LIMITED | 09176960 | N21 | ≈0.4 km |
| D & D HEATING LIMITED | 09579442 | N21 | ≈0.4 km |
Company record
| Field | Value |
|---|---|
| Company number | 11789869 |
| Name | M&M PLUMBING EXPERT LTD |
| Status | Active |
| Incorporated | 28 Jan 2019 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | N21 2QS |
| Outcode | N21 |
| Nation | England |
| Air-to-air signal | not yet observed, checked 25 Sep 2026 |
| F-Gas | not yet observed, checked 25 Sep 2026 |
| MCS air-to-air | not yet observed, checked 25 Sep 2026 |
| Retrieved | 25 Sep 2026 |
| Dataset | https://download.companieshouse.gov.uk/BasicCompanyDataAsOneFile-2026-09-01.zip |
| Companies House page | Company 11789869 |
Companies House record: M&M PLUMBING EXPERT LTD, company 11789869, status Active, retrieved 25 Sep 2026. The address shown is the registered office, not a verified operating base. This catalogue is a directory of incorporated businesses, not an exhaustive installer register. Snapshot 1 Sep 2026, retrieved 25 Sep 2026. The 10 km count is equirectangular to 0.1 km. MCS air-to-air confirmed in this catalogue: 0, checked 25 Sep 2026.
Better than a reviews catalogue: the Companies House record, the district hot-night count and the MCS air-to-air observation are on one page.